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| EPoS Contribution |
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Resolution Requirements for Modelling the Molecular Hydrogen and CO
Prabesh Joshi PH1, Cologne, DE | |
| The simulations investigate the formation of molecular clouds in two different models: (i) driven, supersonic turbulence in periodic boxes and (ii) the colliding flows of the warm neutral medium. The simulations have been carried out with a modified version of the Eulerian AMR code FLASH 4, in which additional physical processes have been implemented. The turbulent magneto-hydrodynamic simulations include a reduced chemical network to treat the formation of molecular hydrogen and CO, diffuse radiative ransfer, as well as non-equilibrium cooling and heating effects. The project conlcudes that the molecule formation in driven periodic box simulations do not show convergence whereas colliding flow simulations require a few times 10-2 pc resolution to reach a converged picture of molecular gas formation. | |
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| Caption: Density snapshots and the evolution of mass fraction of CO in the turbulent box (left) and colliding flow (right) simulations with various resolutions ranging from R4 (0.500 pc) to R10 (0.008 pc). | |
| Collaborators: S. Walch, PH1, DE D. Seifried, PH1, DE M. Weis, PH1, DE |
Suggested Session:
Chemistry |